What are the symptoms of a failed TCC solenoid?

The main symptom of a TCC solenoid failure is the converter is not locking up. When the converter is not locking up you will notice the engine’s RPMs staying higher under load at highway speeds. Another symptom of a failed TCC solenoid is a fault code. Common codes associated with a TCC conditions include:

How to test and replace a 4L60E TCC solenoid?

Testing and replacing your 4l60e TCC solenoid is not as daunting of a task as you may think. If you have ever changed your transmission fluid and filter, then you are capable of replacing the TCC solenoid yourself. The best way to test the TCC solenoid is to measure the OHMs and make sure its within a suitable range.

What does the TCC solenoid do on a toque converter?

What Does The TCC Solenoid Do? The main function of the toque converter clutch or TCC solenoid is to send pressurized fluid to the torque converter’s clutch allowing it to achieve lock up in 4th gear based on a signal from the engine control module (ECM).

Where is the solenoid valve on a Chevrolet?

The TCC solenoid valve attaches to the transmission case assembly extending into the pump cover. The Powertrain Control Module ( PCM) controls the solenoid by providing the ground path.

Can a bad solenoid cause a bad ECM?

Generally, if you unplug the TCC solenoid at the transmission and the symptoms go away, you have found the problem. Sometimes this can be misleading, because you don’t know for sure if the cause is a bad solenoid, dirt in the valve body, or a bad signal from the ECM.

Where is the solenoid valve on a torque converter?

The Torque Converter Clutch (TCC) solenoid valve is an electrical device that is used with the torque converter clutch pulse width modulation (TCC PWM) solenoid valve in order to control TCC apply and release. The TCC solenoid valve attaches to the transmission case assembly extending into the pump cover.

Where to check 12 volts on GM solenoid?

Check for 12 volts to terminal A at the transmission Assembly Line Diagnostic Link (ALDL) as described at the beginning of the Regular Method, above. Most quick methods of testing can be done at the ALDL, which is the plug interface that your factory-like diagnostic tool plugs into.

What is the diagnostic code for a torque converter?

Note: This code is similar to codes P0741, P0742, P0743, P0744, P2769, and P2770. There may be other diagnostic trouble codes associated with the transmission control module that can only be accessed by using an advanced scan tool. If any additional transmission related DTC’s appear in addition to the P0740, an electrical failure is likely.

How does the Transmission Control Module control the torque converter?

The transmission control module has detected a fault with the circuit that operates the torque converter clutch solenoid. We will consider the TCM the controller for the sake of this article although it may be controlled through the PCM/ECM, consult factory wiring diagrams to determine which system is being used.

Where is the TCC solenoid located on a 4L60E?

In essence, the TCC solenoid is like a computer controlled on and off switch for your 4l60e’s torque converter lock up. Where Is The TCC Solenoid Located The 4l60e TCC Solenoid is located on the front passenger side of the transmission near the valve body. The image below shows the locations of various solenoids.

What is diagnostic code for torque converter clutch solenoid?

A faulty torque converter clutch solenoid will normally set diagnostic trouble code P0740. » A problem in the Transmission Control Module (TCM) or Powertrain Control Module (PCM), depending on the vehicle.

Where is the lock up solenoid on a TCC?

The Lockup solenoid is under the side cover. Sometimes the engine cradle needs to be lowered to get the side pan off. The solenoid is around $50. Dont go to a dealer, take it to a trans shop. $600 is WAY too much to pay for this.

How is the torque converter clutch solenoid controlled?

The fluid pressure that applies and releases the torque converter lockup clutch is controlled by the torque converter clutch solenoid. The opening and closing of the TCC solenoid valve is controlled by the transmission control module (TCM) or powertrain control module (PCM), depending on the vehicle.

Where is the lock up solenoid on a car?

Right behind the drivers side front wheel you will see a transmission pan mounted sideways. Remove this pan and the lockup solenoid will be behind there. Easy to replace. Look at it real good, on your vehicle you just might be able to get that cover off without lowering the engine cradle. Here is a pic of the lockup solenoid.

What happens when a transmission solenoid goes into Fail Safe?

A failed transmission solenoid or an open circuit anywhere in the electrical system may cause the transmission to go into Fail Safe (or “limp” mode as it is also called) in order to protect the transmission from internal damage that might be caused by the faulty solenoid or open circuit.